If all what you need is a list of nautilus related packages, you can get it very easily with:
$ dpkg -l | grep nautilus
E.g for me it returns:
ii gir1.2-nautilus-3.0 1:3.10.1-0ubuntu9.2 amd64 libraries for nautilus components - gir bindings
ii libnautilus-extension1a 1:3.10.1-0ubuntu9.1 amd64 libraries for nautilus components - runtime version
ii nautilus 1:3.10.1-0ubuntu9.1 amd64 file manager and graphical shell for GNOME
ii nautilus-data 1:3.10.1-0ubuntu9.1 all data files for nautilus
ii nautilus-open-terminal 0.20-1 amd64 nautilus plugin for opening terminals in arbitrary paths
ii nautilus-pyextensions 3.0-1 all Handler of the Nautilus Python Extensions
ii nautilus-sendto 3.6.1-2ubuntu1 amd64 integrates Evolution and Pidgin into the Nautilus file manager
ii nautilus-sendto-empathy 3.8.6-0ubuntu9.1 amd64 GNOME multi-protocol chat and call client (nautilus-sendto plugin)
ii nautilus-share 0.7.3-1ubuntu5 amd64 Nautilus extension to share folder using Samba
ii python-nautilus 1.1-4 amd64 Python binding for Nautilus components
ii seahorse-nautilus 3.8.0-0ubuntu2 amd64 seahorse plugins and utilities for encryption in GNOME
Trying to guess which ones are plugins or extension is a bit more complex:
dpkg -l | egrep -i 'nautilus.* (extension|plugin)'
This time it returns:
ii nautilus-open-terminal 0.20-1 amd64 nautilus plugin for opening terminals in arbitrary paths
ii nautilus-pyextensions 3.0-1 all Handler of the Nautilus Python Extensions
ii nautilus-sendto-empathy 3.8.6-0ubuntu9.1 amd64 GNOME multi-protocol chat and call client (nautilus-sendto plugin)
ii nautilus-share 0.7.3-1ubuntu5 amd64 Nautilus extension to share folder using Samba
ii seahorse-nautilus 3.8.0-0ubuntu2 amd64 seahorse plugins and utilities for encryption in GNOME
nautilus-pyextensions
your problem? – Sylvain Pineau Jul 21 '14 at 14:33